2003 saab 9-3 a/c blowing hot
my saab 9-3 a/c is blowing hot air refrigerant is good, compressor just randomly starts
and stops working ....unpluged dryer sensor and re-pluge it in and a/c worked one entire
day...the next day it started cutting off again.....please help Florida is hot!
how do you know that "refrigerant is good"? if it were low things like icing would happen...if overcharged there would be insufficient heat- exchange...actually sounds like a blower problem to me....does your blower work on all speeds? the compressor is probably charge sensitive and is not enough charge in there to keep it running~
the expansion valve is a frequently overlooked item when charging the coolant..up to 15psi or whatever the recommended charge is....may be restricting flow here, causing the compressor to "dead head" and shut down~...just a theory...take it and ask about the expansion valve~
Took it to shop to check freeon level
thanks...was a Heating/Refrigeration guy in 1982...'cept the owner was beating his wife...was ugly and quit from there...but did learn a thing or two about air conditioning tho~
And yes it blows at all speeds
That's crazy....I'm worried its going to be an obscure electrical problem...seems to be a common issue from reading forms but no one post how they fixed it,
I kinda figured, but was covering the bases....these troublesome systems are supposed to be "hermetically sealed" which is impossible with a rotating input shaft...dynamic pressurized seals are not keen, if someone could make them magnetically coupled we'd have a TRUE hermetically sealed system which would need NO refrigerant maintenance...think of your fridge....is easy to seal up around two wires...but a rotating shaft offers a whole new dimension to failures~
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